CN114040667A

CN114040667A - Silicon controlled rectifier heat abstractor and hot drinking machine

Info

Publication number: CN114040667A
Application number: CN202111479689.7A
Authority: CN
Inventors: 景昱东; 张宗悦
Original assignee: Ningbo Scishare Technology Co ltd
Current assignee: Ningbo Scishare Technology Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-02-11

Abstract

The invention discloses a silicon controlled rectifier heat dissipation device, which is characterized in that: comprises a main control board (3); the controllable silicon (4) is integrated on the main control board (3); the water cooling seat (5) is provided with a first groove (51) with a downward sunken surface, and the water cooling seat (5) is provided with a water inlet hole (53) and a water outlet hole (54) communicated with the first groove (51); and the radiating fin (6) is covered on the surface of the water cooling seat (5) so that the first groove (51) forms a water cooling channel, the inlet of the water cooling channel is the water inlet hole (53), the outlet of the water cooling channel is the water outlet hole (54), and the silicon controlled rectifier (4) is in heat conduction connection with the radiating fin (6). The invention also discloses a hot drinking machine applying the silicon controlled heat dissipation device. Compared with the prior art, the silicon controlled heat dissipation device is low in cost and good in heat dissipation effect.

Description

Silicon controlled rectifier heat abstractor and hot drinking machine

Technical Field

The invention relates to the technical field of hot water dispensers, in particular to a silicon controlled heat dissipation device and a hot water dispenser.

Background

In order to pursue the extreme conditions of water temperature, flow, water outlet effect, cup temperature and the like, the control mode of a heating element by a general main control panel is divided into a plurality of control modes such as a single relay, a double relay, a single silicon controlled rectifier and a single relay:

(1) a single relay: the model BPD-SS-112DM manufactured by AFE manufacturers is taken as a representative series of similar mechanical electromagnetic relays, and the electromagnetic relays are essentially in a constant control mode of controlling high voltage and large current by low voltage and low current;

the device has the advantages of mature and reliable technology, zero loss, small heat productivity, low price, capability of providing a plurality of groups of contacts and normally open and normally closed contacts, no leakage current, compatibility of AC and DC, compact structure and the like;

the defects of inrush current generated during switching-on and switching-off, slow response, incapability of being used in a very fine switching-on and switching-off control circuit, noise in action, electromagnetic interference, limited contact service life, incomplete synchronization of switching action, contact jumping, poor high-current operating performance, electric arc generation and the like;

particularly, the slow response mode cannot be used in a fine on-off control circuit and cannot control the heating element in a segmented mode, and the mode cannot adjust the voltage and the power, so that the water temperature, the flow and the cup temperature of the hot water drinking machine cannot be accurately controlled; particularly, the water temperature between 45 ℃ and 65 ℃ is difficult to control;

(2) double relays: the control logic of the device is the same as that of a single relay, and in order to enable the water temperature and the flow rate to be relatively accurate, the heating element is divided into two sections for heating; when water with the temperature of more than 90 ℃ is needed, the two relays are simultaneously connected with the heating element and work at two sections simultaneously; when 50 ℃ water is needed, one of the relays controls one section of the heating element to work; the accuracy of the relative water quantity and the water temperature is realized;

(3) single controllable silicon: an electronic component made of a series of similar semiconductor materials, which is mainly represented by BTA20-800BW produced by a Kingson manufacturer; in an automatic control system, the device can be used as a high-power driving device to realize the control of high-power equipment by using a low-power control; the method is widely applied to an alternating current and direct current motor speed regulating system, a power regulating system and a follow-up system;

the device has the advantages of small volume, high efficiency, long service life, no contact, no inrush current when being switched on and switched off, high switching-on and switching-off speed, capability of controlling zero-crossing switching-on and switching-off and capability of controlling power;

the defects are high cost, relatively complex control, small capacity, large power consumption and serious heat generation;

(4) single thyristor + single relay: the advantages of the silicon controlled rectifier and the relay are combined, and all performance parameters of the hot water drinking machine are controlled more simply and accurately; the disadvantage is high price, and the thyristor heats seriously and needs heat dissipation;

in conclusion, the thyristor can accurately control the power of the heating element and solve the performance parameters of the hot water dispenser, but the thyristor has extremely poor heat dissipation performance and needs to be subjected to heat dissipation treatment independently.

The scheme that prior art adopted usually is to separate the silicon controlled rectifier from the mainboard alone, does a PCB platelet for the silicon controlled rectifier alone, and the silicon controlled rectifier platelet can be fixed and make things convenient for the place of water dispenser intake (like north ding S801, thinking S2305), but if do the PCB platelet for the silicon controlled rectifier alone, the silicon controlled rectifier platelet still needs other peripheral circuits except the silicon controlled rectifier, does the cost that increases the machine like this, still needs other wiring during production operation.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide a silicon controlled rectifier heat dissipation device with low cost and good heat dissipation effect, aiming at the current situation of the prior art.

The second technical problem to be solved by the invention is to provide a hot water drinking machine applying the silicon controlled heat dissipation device.

The technical scheme adopted by the invention for solving the first technical problem is as follows: the utility model provides a silicon controlled rectifier heat abstractor which characterized in that: comprises that

A main control board;

the silicon controlled rectifier is integrated on the main control board;

the surface of the water cooling seat is downwards sunken to form a first groove, and a water inlet hole and a water outlet hole which are communicated with the first groove are formed in the water cooling seat; and

the radiating fin covers the surface of the water cooling seat so that the first groove forms a water cooling channel, the inlet of the water cooling channel is the water inlet hole, the outlet of the water cooling channel is the water outlet hole, and the silicon controlled rectifier is in heat conduction connection with the radiating fin.

In order to avoid the liquid in the first groove from leaking outwards, the surface of the water cooling seat, which is positioned around the first groove, is recessed downwards to form a second groove, a sealing gasket is embedded in the second groove, and the sealing gasket is in sealing fit with the radiating fin.

In order to facilitate the pre-positioning of the water cooling seat and the radiating fins, at least two positioning columns which are arranged at intervals are arranged on the bottom surface of the second groove in an upward protruding mode, positioning holes which correspond to the positioning columns one by one are formed in the radiating fins, and the positioning columns are inserted into the corresponding positioning holes.

In order to facilitate the installation of the main control board and the controllable silicon, the silicon-controlled rectifier further comprises an installation box, a side portion of the installation box is provided with an open installation groove, a yielding port is formed in the bottom wall of the installation box, the main control board is accommodated in the installation groove, and the controllable silicon penetrates through the yielding port and extends to the outer side of the installation box.

In order to facilitate the installation of the radiating fins, the bottom wall of the installation box is provided with a vertically arranged installation plate, the radiating fins are basically in an L shape, side plates of the radiating fins are tightly attached to the installation plate, the bottom plate of the radiating fins is covered on the surface of the water cooling seat, and the silicon controlled rectifier is tightly attached to the side plates of the radiating fins.

In order to guarantee the maximization of the effective length of the water cooling channel, and the contact area which is large enough is arranged between the water cooling channel and the radiating fins as far as possible, the radiating effect is improved, the first groove is in a strip shape, and the water inlet hole and the water outlet hole are respectively positioned at two ends of the first groove.

The technical scheme adopted by the invention for solving the second technical problem is as follows: a hot drinking machine using the silicon controlled heat radiator.

In order to save energy and simplify the structure, the device comprises a machine body with a hollow interior, wherein the machine body is provided with a water inlet and a water outlet tap, and the silicon controlled heat dissipation device is accommodated in an inner cavity of the machine body;

the silicon controlled heat radiator also comprises a heating body, the heating body is provided with a cold water inlet and a hot water outlet and can heat cold water into hot water, the inlet of the water cooling channel is communicated with the water inlet, the outlet of the water cooling channel is communicated with the cold water inlet of the heating body, and the inlet of the water outlet faucet is communicated with the hot water outlet of the heating body.

The water source through with the water source of heat-generating body is as the water source of water-cooling seat simultaneously, can carry out make full use of to the water source on the one hand, avoids extravagant, and on the other hand can preheat the cold water that gets into the heat-generating body, practices thrift the energy consumption.

In order to improve the heat dissipation effect and facilitate the installation of the water pump at the same time, the silicon controlled heat dissipation device also comprises the water pump, the water pump is provided with a water suction port and a water outlet, and water can be conveyed from the water suction port to the water outlet;

the quantity of water-cooling passageway is two, marks as first water-cooling passageway and second water-cooling passageway respectively, the entry of first water-cooling passageway with the water inlet be linked together, the export of first water-cooling passageway with the water sucking mouth of water pump is linked together, the entry of second water-cooling passageway with the outlet of water pump is linked together, the export of second water-cooling passageway with the cold water entry of heat-generating body is linked together.

In order to quickly heat the inlet water to the outlet water temperature set by a user, a temperature sensor is arranged on the water cooling seat, and the sensing end of the temperature sensor extends into the outlet of the second water cooling channel;

the temperature sensor and the heating body are electrically connected with the main control board, so that the main control board can receive signals collected by the temperature sensor and give the silicon controlled rectifier instructions to control the power of the heating body.

Compared with the prior art, the invention has the advantages that: the silicon controlled rectifier is cooled by the aid of the structure of the integrated water channel, heat dissipation effect is good, the silicon controlled rectifier is integrated on the main control board, a PCB (printed circuit board) of the silicon controlled rectifier is not required to be independently made, cost is low, and assembly is facilitated.

Drawings

FIG. 1 is a schematic perspective view of a hot water dispenser according to an embodiment of the present invention;

FIG. 2 is a longitudinal cross-sectional view of the hot water dispenser of FIG. 1;

fig. 3 is a schematic perspective view of the thyristor heat sink in fig. 2;

fig. 4 is a schematic exploded perspective view of the scr heat dissipation device in fig. 3;

fig. 5 is a schematic perspective view of the water-cooling seat in fig. 4 without a gasket.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

Fig. 1 to 5 show a preferred embodiment of a hot water dispenser using a thyristor heat sink according to the present invention. The hot water drinking machine comprises a machine body 1, a mounting box 2, a main control board 3, a silicon controlled rectifier 4, a water cooling seat 5, a radiating fin 6, a water pump 7, a heating body 8 and a temperature sensor 9, wherein the mounting box 2, the main control board 3, the silicon controlled rectifier 4, the water cooling seat 5, the radiating fin 6, the water pump 7, the heating body 8 and the temperature sensor 9 form a silicon controlled rectifier radiating device.

The interior of the machine body 1 is hollow, and the silicon controlled heat dissipation device is accommodated in the inner cavity of the machine body 1. The bottom of the rear side of the machine body 1 is provided with a supporting part 11 extending backwards, the top wall of the supporting part 11 is provided with a water inlet 111 communicated with the inner cavity of the machine body 1, the supporting part 11 is detachably provided with a water tank 112, and a water outlet connector of the water tank 112 is inserted in the water inlet 111; the top of the front side of the machine body 1 is provided with a water outlet tap 12.

The mounting box 2 is installed on the inner wall of above-mentioned organism 1, and the inside of this mounting box 2 is formed with the lateral part and has open mounting groove 21, has seted up on the diapire of mounting box 2 and has let a mouthful 22, and has the vertical mounting panel 23 of arranging that downwardly extending formed on the diapire.

The main control board 3 is accommodated in the mounting groove 21.

The thyristor 4 is integrated on the main control board 3, and the thyristor 4 passes through the allowance opening 22 and extends to the outer side of the mounting box 2.

A first groove 51 is formed by downwards sinking the surface of the water cooling seat 5, a second groove 52 is formed by downwards sinking the surface of the water cooling seat 5 around the first groove 51, and a water inlet hole 53 and a water outlet hole 54 which are communicated with the first groove 51 are arranged on the water cooling seat 5; at least two positioning columns 521 arranged at intervals are arranged on the bottom surface of the second groove 52 in an upward protruding mode, and a sealing gasket 522 is embedded in the second groove 52.

The heat sink 6 is substantially L-shaped with substantially vertically arranged side plates 61 and a substantially horizontally arranged bottom plate 62. The side plate 61 of the radiating fin 6 is closely attached to the mounting plate 23, and the controllable silicon 4 is closely attached to the side plate 61 of the radiating fin 6 and is in heat conduction connection with the side plate 61; the bottom plate 62 of the heat sink 6 covers the surface of the water cooling base 5 and is connected with the water cooling base 5, so that the first groove 51 forms a water cooling channel, the inlet of the water cooling channel is the water inlet 53, the outlet of the water cooling channel is the water outlet 54, and the sealing gasket 522 is in sealing fit with the bottom plate 62; the bottom plate 62 is provided with positioning holes 621 corresponding to the positioning columns 521 one by one, and the positioning columns 521 are inserted into the corresponding positioning holes 621, so that pre-positioning is facilitated.

The water pump 7 is integrated in the bottom of the water-cooling seat 5, and the water pump 7 is a self-sucking pump and is provided with a water sucking port and a water discharging port, so that water can be conveyed to the water discharging port from the water sucking port.

The heating element 8 is mounted on the inner wall of the machine body 1, has a cold water inlet and a hot water outlet, and can heat cold water into hot water.

In this embodiment, the first groove 51 is a long strip and is substantially horizontally disposed, and the water inlet hole 53 and the water outlet hole 54 are respectively located at two ends of the first groove 51, so as to ensure that the effective length of the water cooling channel is maximized, and the water cooling channel and the heat dissipation fins 6 have a large enough contact area as much as possible, thereby improving the heat dissipation effect. The number of the first grooves 51 is two, and therefore the number of the water cooling channels is two, which are respectively referred to as a first water cooling channel and a second water cooling channel. The inlet of the first water-cooling channel is communicated with the water outlet 111 through a first water pipe a, the outlet of the first water-cooling channel is communicated with the water suction port of the water pump 7, the inlet of the second water-cooling channel is communicated with the water discharge port of the water pump 7, the outlet of the second water-cooling channel is communicated with the cold water inlet of the heating element 8 through a second water pipe b, and the inlet of the water outlet tap 12 is communicated with the hot water outlet of the heating element 8 through a third water pipe c.

And a temperature sensor 9 is arranged on the water cooling seat 5, the temperature sensor 9 is an NTC temperature sensor, and the sensing end of the temperature sensor extends into the outlet of the second water cooling channel. In addition, the temperature sensor 9, the water pump 7 and the heating element 8 are electrically connected with the main control board 3, so that the main control board 3 can receive signals collected by the temperature sensor 9 and give instructions to the controllable silicon 4 to control the power of the heating element 8.

For the silicon controlled rectifier heat dissipation device:

(1) the cost is low, and a silicon controlled PCB does not need to be manufactured independently;

(2) the controllable silicon 4 is integrated on the main control board 3, and independent wiring is not needed, so that the assembly is convenient;

(3) the water inlet and outlet of the water cooling seat 5 are consistent with the water inlet and outlet of the water pump 7, and multi-section pipeline connection is not needed;

(4) the temperature is accurate, the water outlet temperature of the heating water dispenser can be controlled to be +/-1 ℃, and the temperature of water flowing into the cup can be guaranteed;

(5) the water quantity is accurate, the water outlet flow of the hot water dispenser can be controlled, and the water outlet flow can be controlled within +/-5 ml generally.

The working principle of the embodiment is as follows: when heating is started, the main control board 3 turns on the water pump 7, cold water in the water tank 112 enters an inlet of a first water-cooling channel through a first water pipe a, the controllable silicon 4 is radiated through the radiating fin 6 in the process that the cold water approaches the first water-cooling channel, then the cold water is discharged from an outlet of the first water-cooling channel to the water pump 7 and enters an inlet of a second water-cooling channel, the controllable silicon 4 is also radiated through the radiating fin 6 in the process that the cold water approaches the second water-cooling channel, then the cold water enters a cold water inlet of the heating body 8 through a second water pipe b from an outlet of the second water-cooling channel, the cold water is heated by the heating body 8 to become hot water, and finally the cold water enters the water outlet faucet 12 through a third water pipe c from a hot water outlet of the heating body 8 and is provided for a user;

in the process, when the temperature sensor 9 detects that the outlet water temperature is lower than the set outlet water temperature, the main control board 3 gives an instruction to the silicon controlled rectifier 4 to control the power of the heating element 8 to be started and simultaneously matches and controls the water flow to enable the heating system to reach thermal balance so as to quickly heat the inlet water to the outlet water temperature set by a user; during the silicon controlled rectifier 4 carries out work, the surface goes out rapid intensification, and too high temperature can reduce silicon controlled rectifier 4's area load ability, can damage silicon controlled rectifier 4 when serious, and the while is working under high temperature environment always, can shorten the silicon controlled rectifier life-span. For leaving water temperature more accurate, do not have the influence to silicon controlled rectifier 4 performance simultaneously, the structural style that this embodiment utilized integrated water route dispels the heat to silicon controlled rectifier 4, and regard as the water source of water cooling seat 5 simultaneously with the water source of above-mentioned heat-generating body 8, can carry out make full use of to the water source on the one hand, avoid extravagant, on the other hand can preheat the cold water that gets into heat-generating body 8, practices thrift the energy consumption.

Claims

1. The utility model provides a silicon controlled rectifier heat abstractor which characterized in that: comprises that

A main control board (3);

the controllable silicon (4) is integrated on the main control board (3);

the water cooling seat (5) is provided with a first groove (51) with a downward sunken surface, and the water cooling seat (5) is provided with a water inlet hole (53) and a water outlet hole (54) communicated with the first groove (51); and

and the radiating fin (6) is covered on the surface of the water cooling seat (5) so that the first groove (51) forms a water cooling channel, the inlet of the water cooling channel is the water inlet hole (53), the outlet of the water cooling channel is the water outlet hole (54), and the silicon controlled rectifier (4) is in heat conduction connection with the radiating fin (6).

2. The silicon controlled heat sink as claimed in claim 1, wherein: the surface of the water cooling seat (5) around the first groove (51) is downwards recessed to form a second groove (52), a sealing gasket (522) is embedded in the second groove (52), and the sealing gasket (522) is in sealing fit with the radiating fin (6).

3. The silicon controlled heat sink as claimed in claim 2, wherein: at least two positioning columns (521) which are arranged at intervals are arranged on the bottom surface of the second groove (52) in an upward protruding mode, positioning holes (621) which correspond to the positioning columns (521) one by one are formed in the radiating fin (6), and the positioning columns (521) are inserted into the corresponding positioning holes (621).

4. The silicon controlled heat sink as claimed in claim 1, wherein: still including mounting box (2), the inside of this mounting box (2) is formed with the lateral part and has open mounting groove (21), has seted up on the diapire of mounting box (2) and has let a mouthful (22), main control board (3) holding be in mounting groove (21) in, silicon controlled rectifier (4) pass let a mouthful (22) and extend to the outside of mounting box (2).

5. The silicon controlled heat sink as claimed in claim 4, wherein: the bottom wall of the mounting box (2) is provided with a vertically arranged mounting plate (23), the radiating fins (6) are basically L-shaped, side plates (61) of the radiating fins (6) are tightly attached to the mounting plate (23) and arranged, bottom plates (62) of the radiating fins (6) are covered on the surface of the water cooling seat (5), and the silicon controlled rectifiers (4) are tightly attached to the side plates (61) of the radiating fins (6) and arranged.

6. The silicon controlled heat sink as claimed in any one of claims 1 to 5, wherein: the first groove (51) is in a long strip shape, and the water inlet hole (53) and the water outlet hole (54) are respectively positioned at two ends of the first groove (51).

7. A hot water drinking machine using the thyristor heat sink as claimed in any one of claims 1 to 6.

8. The hot water dispenser of claim 7, wherein: the silicon controlled heat dissipation device comprises a machine body (1) with a hollow interior, wherein a water inlet (111) and a water outlet faucet (12) are arranged on the machine body (1), and the silicon controlled heat dissipation device is accommodated in an inner cavity of the machine body (1);

the silicon controlled heat dissipation device further comprises a heating body (8), the heating body (8) is provided with a cold water inlet and a hot water outlet, cold water can be heated into hot water, the inlet of the water cooling channel is communicated with the water inlet (111), the outlet of the water cooling channel is communicated with the cold water inlet of the heating body (8), and the inlet of the water outlet faucet (12) is communicated with the hot water outlet of the heating body (8).

9. The hot water dispenser of claim 8, wherein: the silicon controlled heat dissipation device also comprises a water pump (7), wherein the water pump (7) is provided with a water suction port and a water discharge port and can convey water from the water suction port to the water discharge port;

the quantity of water-cooling passageway is two, marks as first water-cooling passageway and second water-cooling passageway respectively, the entry of first water-cooling passageway with water inlet (111) be linked together, the export of first water-cooling passageway with the mouth that absorbs water of water pump (7) is linked together, the entry of second water-cooling passageway with the outlet of water pump (7) is linked together, the export of second water-cooling passageway with the cold water entry of heat-generating body (8) is linked together.

10. The hot water dispenser of claim 9, wherein: a temperature sensor (9) is arranged on the water cooling seat (5), and the sensing end of the temperature sensor (9) extends into the outlet of the second water cooling channel;

the temperature sensor (9) and the heating body (8) are electrically connected with the main control board (3) so that the main control board (3) can receive signals collected by the temperature sensor (9) and give the silicon controlled rectifier (4) instructions to control the power of the heating body (8).